Optical amplifier



FIG. 1 is a perspective view of an optical amplifier in accordance withmy new design.

FIG. 2 is a top view of the optical amplifier shown in FIG. 1.

FIG. 3 is a bottom view of the optical amplifier shown in FIG. 1.

FIG. 4 is a first end view of the optical amplifier shown in FIG. 1, asecond end view being identical.

FIG. 5 is a side view of the optical amplifier shown in FIG. 1; and,

FIG. 6 is a right side view of the optical amplifier shown in FIG. 1.

The ornamental design for an optical amplifier, as shown and described.